<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body><p><a href="http://www.baidu.com" target="_blank">baidu</a></p>
    <a href="./1.html" target="_blank">1标签</a>
    <a href="#">空链接</a>
    
</body>
</html>